Absorption Efficiency and Physical Bounds on Antennas
Författare
Summary, in English
Abstract—The all spectrum absorption efficiency appears in
the physical bounds on antennas expressed in the polarizability
dyadics. Here, it is shown that this generalized absorption
efficiency is close to 1/2 for small idealized dipole antennas and
for antennas with a dominant resonance in their absorption. Also,
the usefulness of this parameter is analyzed for estimation of
antenna performance. The results are illustrated with numerical
data for several antennas.
the physical bounds on antennas expressed in the polarizability
dyadics. Here, it is shown that this generalized absorption
efficiency is close to 1/2 for small idealized dipole antennas and
for antennas with a dominant resonance in their absorption. Also,
the usefulness of this parameter is analyzed for estimation of
antenna performance. The results are illustrated with numerical
data for several antennas.
Publiceringsår
2010
Språk
Engelska
Publikation/Tidskrift/Serie
International Journal of Antennas and Propagation
Volym
2010
Dokumenttyp
Artikel i tidskrift
Förlag
Hindawi Limited
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Nyckelord
- sum rule
- absorption efficiency
- Physical bounds
- polarizability
Status
Published
Forskningsgrupp
- Electromagnetic theory
ISBN/ISSN/Övrigt
- ISSN: 1687-5869